#include<iostream>

using namespace std;

int main()
{
    //int a, b;
    //cin>>a>>b; // 等价与 cin>>a; cin>>b;
    //cout<<a<<" "<<b<<endl;
    int a; char b;
    //scanf("%d%c",&a,&b);
    scanf("%d", &a);
    getchar();
    scanf("%c", &b);
    printf("%d,%c\n", a, b);
    //cin>>a>>b;
    //printf("%d,%c\n", a, b);
    return 0;
}